Display cooler



FIG. 1 is a perspective view of a display cooler showing our new design;

FIG. 2 is a front elevation thereof, the rear and side elevations being identical to the front elevation, except for the position of the lid and casters, which are shown in broken lines for purposes of illustration only and form no part of the claimed design;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a display cooler, as shown and described. 